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Chapter 5. COM+ Programming Model

In Chapter 4, we saw that COM+ offers a slew of services such as synchronization, transaction, queuing, and security. Developers can leverage one or more of these services to build enterprise systems.

A component has to be configured to indicate to COM+ the specific COM+ services it is interested in using. When a client creates an object of such a configured component, COM+ sets up the requested services for the object.

Essentially, the configuration settings on a COM object dictate certain run-time requirements for the object. These run-time requirements for a COM+ object are collectively referred to as the object s context.

In this chapter, we look at how to specify the configuration settings for a component and where COM+ stores the configuration information. We then examine how COM+ ensures that an object is created in a context that is compatible with its configuration settings. Finally, we look at different ways to use an object in a different context.


COM+ Programming. A Practical Guide Using Visual C++ and ATL
COM+ Programming. A Practical Guide Using Visual C++ and ATL
ISBN: 130886742
Year: 2000
Pages: 129 © 2008-2017.
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